About Date Calculators
Free calculators for ages, countdowns and the calendar, counting UK dates and showing every step.
Who we are
Date Calculators is published by Youell Systems Ltd and edited by Max Youell. It went live on 14 November 2026. It is part of the same family as Energy Calculators and Work Calculators.
We build calculators that answer one question each, properly. Calendar rules come from the law and GOV.UK, every date is counted on the UK calendar, and every result has a "Show the workings" button so you can check the count yourself.
What we are not
Our calculators give information, not advice. For anything with a legal deadline, such as a notice period, a tax return or a court date, check the date with whoever set it. We do not sell your details and there is nothing to sign up to.
Get in touch
Email max@youellsystems.co.uk. Tell us if you spot a mistake: we fix errors as soon as we can and list them on how we work.
Company details
Youell Systems Ltd is registered in England and Wales, company number 17464004.
Registered office: 18 Albert Road, Clayton West, Huddersfield HD8 9NL.